Panasonic EY7442, Service Manual, Page: 8 / 23

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4 Disassembly and Assembly Instructions
Ref. No. 1A Procedure 1A Removal of Keyless chuck.
NOTE:
When attaching or removing a bit, disconnect battery pack from
tool.
1. Set the clutch handle to position and select “LOW” position.
2. Turn the lock collar counterclockwise (looking from the front) to
open the chuck jaws.
3. Use a screwdriver to turn the chuck fastening screw inside the
chuck clockwise direction of the arrow, and remove the screw.
NOTE:
If the chuck fastening screw will not come loose, insert the allen
wrench into the chuck and lightly tap in the clockwise direction with
a hammer to tighten the chuck, and then loosen the chuck fasten-
ing screw.
4. Insert the allen wrench into the chuck, and turn counterclockwise
direction in the arrow with holding the unit by the vise to remove the
chuck.
Ref. No. 2B Procedure 2A
→
2B Removal of Housing.
1. Remove 9 housing screws.